package com.xulinhao.filter;/**
 * @author xulinhao
 * @create 2021-06-02 20:15
 */

import com.alibaba.druid.sql.visitor.functions.If;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * @Author xlh
 * @packagename: com.xulinhao.filter
 * @classname: ManagerFilter
 * @Description:
 * @Date 2021/6/2
 */
public class ManagerFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
        Object user = httpServletRequest.getSession().getAttribute("user");

        if (user == null){
            httpServletRequest.getRequestDispatcher("/pages/user/login.jsp").forward(servletRequest, servletResponse);
        }else {
            filterChain.doFilter(servletRequest, servletResponse);
        }

    }

    @Override
    public void destroy() {

    }
}
